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SUS631-CPS

Product parameters
Material Category:: Stainless Steel
Steel Grade: SUS631-CPS
Material Technical Standards:: JIS
Specification Code:: JIS G4313-1996
Place of Origin: Japan
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Description
Introduction:
SUS631-CPS usually produced by BEF & AOD followed by electroslag remelting (ESR) / VAR if necessary for special purpose.
Bars and, where applicable, forgings are subjected to ultrasonic examination based on the different levels according to the buyers' requirements.
100% Ultrasonic test
ASTM E2375 /SAE AMS 2154 /SEP 1923 /GB/T 4162 /EN 10228-3.
Bars are usually supplied black/bright in the annealed condition.
Applications:
Commonly used in industries such as offshore, marine, food, paper mills, oil field and aerospace.SUS631-CPS used for components such as
fasteners, couplings, screws, bushings, studs, fittings, valve stems, roller, wear rings.
All Grades Comparison
JIS Other
SUS631-CPS -
Chemical Composition (Weight %)
C Si Mn P S Cr Ni Mo Other
≤ 0.09 ≤ 1.00 ≤ 1.00 ≤ 0.040 ≤ 0.030 16.0 ~ 18.0 6.50 ~ 7.75 - Al 0.25 ~ 1.50
Mechanical Properties
Condition of heat treatment Tensile
Rm(MPa)
Yield
Rp0.2(MPa)
Elongation
A(%)
Reduction in cross
section on fracture
Z (%)
Impact
AKV/AKU(J)
Brinell
Hardness(HBW)
solution treated ≥ 1030 ≥ 380 ≥ 20.0 - - ≤ 229
 H900 hardened, aged 470~490 air cooled ≥ 1140 ≥ 960 ≥ 5.0 ≥ 25.0 - ≤ 363
Forms and Shapes:
Round bar (Diameter): 5.5 mm to 700 mm
Wire rod (Diameter): 0.10 ~ 16mm
Square bar / Flat bar: 5mm to 550mm
Steel strip via cold rolled: T0.1 - 3mm X W5 - 650mm X L (or in coil form)
Forged ring: OD200 ~ 1500mm X ID150 ~ 1250mm X H20 ~ 1250mm
Heavy/middle plate via hot rolled: T50 - 200mm X W80- 1200mm X L1000-3000mm
Forging piece: stepped shafts with flanks / discs /tubes /slugs /donuts /cubes /other different shapes based on OEM. 
Length: Fixed length or random length or based on the customer's special requirement.

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